The Bucher 85577 rocker cover is a high-quality engine component designed for various JCB engines. This genuine part, also known as a valve tappet cover, ensures proper sealing and protection for the engine's valvetrain. It is a direct equivalent to the OEM JCB part number 320/04107, guaranteeing precise fitment and reliable performance. Ideal for maintenance and repair of agricultural and construction machinery equipped with compatible JCB engines.